std/uuid/v4_test.ts

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals } from "../testing/asserts.ts";
import { generate, validate } from "./v4.ts";

Deno.test("[UUID] test_uuid_v4", () => {
  const u = generate();
  assertEquals(typeof u, "string", "returns a string");
  assert(u !== "", "return string is not empty");
});

Deno.test("[UUID] test_uuid_v4_format", () => {
  for (let i = 0; i < 10000; i++) {
    const u = generate() as string;
    assert(validate(u), `${u} is not a valid uuid v4`);
  }
});

Deno.test("[UUID] is_valid_uuid_v4", () => {
  const u = generate();
  const t = "84fb7824-b951-490e-8afd-0c13228a8282";
  const n = "84fb7824-b951-490g-8afd-0c13228a8282";

  assert(validate(u), `generated ${u} should be valid`);
  assert(validate(t), `${t} should be valid`);
  assert(!validate(n), `${n} should not be valid`);
});